Railway car wall



March 30, 1937.

G G. GILPlN RAILWAY CAR WALL Filed March 16, 1935 9 NN N N mg PatentedMar. 30, 1937 UNITED STATES PATENT OFFICE RAILWAY CAR WALL poration ofDelaware Application March 16, 1933, Serial No. 661,112

2 Claims.

The invention relates to railway cars, preferably of the open top typewhich are used to transport such plastic ladings as coal, sand, chats,etc. Such loads exert a greater outward pressure against the retainingwall adjacent the floor of the car than adjacent the top thereof,therefore, the lower portion of the retaining wall should be strongerthan the upper portion to resist such pressure. When a car is loadedwith a plastic commodity the maximum outward pressure is at a line aboutone-third the way up from the floor, and, of course, when the car isonly partially loaded the pressure is greatest below said line. Thisstrength should be in addition to the strength of the wall as a girderto carry the Weight of the lading to the bolsters of the car. 7

It has been proposed to roll metallic plates thicker at one edge than atthe opposite edge thereof, but the rolling difiiculties of producingsuch a plate make the cost practically prohibitive. It has also beenproposed to secure relatively thin and relatively thick plates togetherby a lap riveted joint, but such a process makes a plate 25 which isheavy (due to the surplus material used in the lap) and expensive (dueto the vast number of rivets necessary to preserve the strength of thewall as a girder and as a retaining wall).

The interior, as well as the exterior of the 30 walls of open toprailway cars, are exposed to the elements and the constant wetting anddrying thereof causes excessive corrosion and moisture creeps into thelap joints mentioned above and causes further corrosion between theplates;

35 between the rivets and also along the edges of both plates.Furthermore, the greatest corrosion occurs in the lower portion of thewalls because that part of the wall is more frequently in contact withmoist lading and even when the car 40 is empty a small part of the loadremains and holds moisture. This is especially true of soft coal whenmoisture with the coal forms sulphuric acid.

Open top railway cars are sometimes provided 45 with panels in theretaining walls which project outwardly from the interior of the carbetween the vertical and horizontal frame members so as to increase thecubical capacity of the car without increasing the width or heightthereof. Such 50 a construction is shown in Hart Patent No.

1,623,591 of April 5, 1927.

In the drawing:

Fig. 1 is a partial side elevation of a wall of a railway carincorporating my invention.

55 Fig. 2 is a section on line 22 of Fig. 1.

Fig. 3 is a section on line 3--3 of Fig. 1.

In the drawing the wall comprises the vertical stakes 2; upper chord 4;lower chord 6 and the web plate 8. Each web plate is provided with apanel extending from adjacent the chords 4 and 6 and extending fromadjacent the adjacent stakes 2 to increase the cubical capacity of thecar without increasing its width. The panel comprises a main part 14with sloping portions l6, l8 and to discharge the lading. The plates areprovided with marginal parts 22 secured to the stakes 2 and marginalparts 24 and 26 secured to the chords 4 and 6 respectively. A separatemember [2 conforming to the configuration of the lower part of the webplate and the 15 panel therein is positioned on the inside of the Wall.The upper edge 13 of this member I2 is welded to the Web plate and thepanel therein and the lower marginal part of the member 42 is secured tothe lower chord 6.

The accompanying drawing illustrates the preferred form of theinvention, though it is to be understood that the invention is notlimited to the exact details of construction shown and described, as itis obvious that various modifications thereof, within the scope of theclaims, will occur to persons skilled in the art.

I claim:

1. In a wall for a railway car comprising an upper chord, a lower chord,spaced apart vertical 30 stakes connected to said chords and a web plateattached to said chords and stakes, said web plate provided with a panelextending from adjacent said chords and from adjacent said stakes incombination with a separate member on the inside of said wall conformingto the configuration of the lower part of the web plate and the paneltherein, said member having its upper edge welded to the web plate andthe panel therein said member having its lower marginal part secured tosaid web plate.

2. In a wall for a railway car comprising an upper chord, a lower chord,spaced apart vertical stakes connected to said chords and a web plateattached to said chords and stakes, said web plate provided with a panelextending from adjacent said chords and from adjacent said stakes incombination with a separate member on the inside of said wall conformingto the configuration of the lower part of the web plate and the paneltherein, said member having its upper edge welded to the web plate andthe panel therein, said member having its lower marginal part secured tothe lower chord.

GARTH G. GILPIN.

